A:AnswerNathan,
You can access the Netflix and Disney plus app with the 4k stick, but, you need an actual subscription to view any content on those apps. So, I suggest signing up for those particular apps, netflix or/and Disney before you intend to access these apps.
However, you can still sign up on their respective websites, and access them on your laptop, smartphone, or tablet. You don't need a stick to sign up, but, watching content on your big screen TV makes it even more en enjoyable, via the stick.
Just remember, you must have an active subscription for viewing content on those apps
A:AnswerHello Mgbdad2, I understand you interested in knowing if vexus is available on the Fire TV Stick 4K Max. VexusTv is available for download on the Fire TV Stick 4K Max. I hope this has addressed your concern. Have a great day!
A:AnswerIf you have a free HDMI port on your TV just plug it in there and switch your TV input to the HDMI port you have the Fire Tv Stick plugged into and walk through the setup.
A:AnswerThis could be a problem with your surround sound or your TV or your current streaming device.
So it's not possible to tell if just a new firestick would fix this issue